Device for locking door and window leaves

ABSTRACT

The invention relates to a device for locking at least one leaf pivotally mounted in a frame by means of hinge plates which additionally permit the displacement of the leaf in translational motion with respect to the frame. The hinge plates are oriented parallel to the frame and means providing a connection between the hinge plates and the frame are provided for guiding the movement of displacement of the hinge plates so that said movement is carried out in the plane of said hinge plates and has an oblique component with respect to the vertical along at least a part of its path, said movement being controlled by an external lever.

United States atent [72] Inventor Marcel Bercheux Meudon la Foret, France [21] Appl. No. 858,956

[22] Filed Sept. 18, 1969 [45] Patented Jan. 4, 1972 [73] Assignee Boussois Sonchon Neuvesel Paris, France [32] Priority Oct. 2, 1968 [33] France [54] DEVICE FOR LOCKING DOOR AND WINDOW LEAVES 2 Claims, 12 Drawing Figs.

[52] U.S. Cl 49/256, 16/ I 60 [51] Int. Cl E05f 7/02 [50] Field of Search 49/255, 256, 192, 257, 226; 16/160 Primary Examiner-Kenneth Downey Attorney-Young & Thompson ABSTRACT: The invention relates to a device for locking at least one leaf pivotally mounted in a frame by means of hinge plates which additionally permit the displacement of the leaf in translational mon'on with respect to the frame. The hinge plates are oriented parallel to the frame and means providing a connection between the hinge plates and the frame are provided for guiding the movement of displacement of the hinge plates so that said movement is carried out in the plane of said hinge plates and has an oblique component with respect to the vertical along at least a part of its path, said movement being controlled by an external lever.

PATENTED JAN 4 I972 sum 2 OF 6 i lllllll [VII l l ll/l; Illl 3 v mu ly lllwV v klll Vfl l l l h F I. n 1 Aw m q 1 u Aryan/me PATENTED JAN 4 I972 SHEET 4 BF 6 PATENTEU JAN 41972 SHEET 8 [1F 6 M/mcfl (55/96/4150) DEVICEFOR LOCKING DOOR AND WINDOW LEAVES According to a preferred embodiment the hinge-plate is slidably mounted in a casing which is fixed on the frame and is provided with a lateral slot for the insertion of the hinge plate.

The oblique displacement of the leaf which is assumed to be brought to the closed position parallel to the plane of the frame permits simple locking of the free edge of the leaf whether said free edge is or is not fitted with any particular locking system and can engage, for example, in a vertical rebate which may or may not be fitted with a sealing joint or whether said free edge is fitted with a locking system con stituted by a rebate preferably fitted with a sealing joint and capable of engaging in the free edge of a leaf which is placed opposite to said rebate.

This invention relates to a device for locking at least one door or window leaf which is pivotally mounted in a frame by means of strap hinges.

This invention is more particularly concerned with windows, doors and single-leaf or multiple-leaf French windows which, after being brought into their plane of closure are displaced parallel t themselves in said plane in order to lock them in position.

In accordance with a known technique, an attempt has been made to achieve this result by mounting the leaf on hinge plates which are capable of sliding vertically with respect to the vertical upright member of the hinge plates being controlled manually by means of an operating lever.

When the hinge plates are located in the top" position, the leaf is accordingly unlocked. The leaf is then disengaged from the frame and may be freely displaced in pivotal motion and in particular can be either opened or closed. In order to lock the leaf after setting in the top closed position, the leaf is moved vertically downwards to the bottom" position by means of an operating lever in order that the bottom horizontal edge of said leaf should be tightly applied against a seal fixed on a sill which forms part of the frame. In the case of leaves which are readily deformable, provision is also made as a rule for auxiliary locking members, these members being fixed on the vertical edge of the leaf which is not supported by the hinges and which will be referred to hereinafter as the vertical free edge. In the case of an installation comprising a single leaf, said members are locked in that portion of the frame which is located opposite to the vertical free edge. In the case of an installation comprising two cooperating leaves, said locking members are intended to engage with the catch system which is fixed on the vertical free edge of the other leaf, this latter having previously been placed in the bottom closed position.

In general, leaktightness between the top edge and the vertical edge which is supported on the one hand by the hinges and on the other hand by the frame or casing is ensured by means of seals which are fixed on said frame an against which the leaf slides as it passes from the top position to the bottom position and conversely.

A locking system of this type suffers from a number of disadvantages:

When locking the vertical free edges of leaves which have an insufficient degree of rigidity, it is necessary to employ special locking components. These components are unattractive in appearance, costly, and require to be mounted with a high degree of accuracy; moreover, no effective solution has been found up to the present time in regard to the problem of leaktightness along the vertical free edges of the leaves: finally, in the case of installations comprising two associated leaves, it is not possible to open such leaves by starting indifferently either with one or the other by reason of the closure profile which must be provided in order to ensure leaktightness.

The aim of the present invention is to provide a locking device which is not subject to the above-mentioned disadvantages but which makes it possible in particular to dispense with special components for locking the vertical free edge of the leaf, to ensure good leaktightness along said edge and, in the case of windows having two leaves, to operate each leaf independently of the other.

In accordance with the invention, the device for locking at least one leaf pivotally mounted in a frame by means of hinge plates which additionally permit the displacement of said leaf in translational motion with respect to said frame, wherein at least one of said hinge plates is displaced under the control of an external operating member, is characterized in that the hinge plates are oriented parallel to the frame and that the means providing a connection between the hinge plates and the frame permit a movement of displacement of the hinge plates which is carried out in the plane of said hinge plates and has an oblique component with respect to the vertical along at least a part of its path.

The oblique displacement of the leaf which is assumed to be brought to the closed position parallel to the plane of the frame permits simple locking of the free edge of the leaf whether said free edge is or is not fitted with any particular locking system and can engage, for example, in a vertical rebate which may or may not be fitted with a sealing joint or whether or not said free edge is fitted with a locking system constituted by a rebate preferably fitted with a sealing joint and capable of engaging in the free edge of a leaf which is placed opposite to said rebate.

In an embodiment which is preferred on account of its simplicity, the connection means permit the hinge plates to carry out a movement of displacement consisting of a rectilinear translational movement which is directed obliquely with respect to the vertical and parallel to the plane of the frame.

In an advantageous form of construction, the hinge plate is slidably mounted within a casing which is fixed on the frame and which is provided with a lateral slot for the insertion of said hinge plate. The means which provide a connection between thesliding hinge plate and the casing consist in particular of studs carried by one of these components and engaged in a slot of the other component.

Further properties of the invention will be brought out by the description which is given hereinafter, reference being made to the accompanying drawings which are given by way of nonlimitative example, and in which:

FIG. 1 is a diagrammatic view in perspective with parts broken away and showing a single-leaf window which is equipped in accordance with the invention and located in the top closed position;

FIG. 2 is a view which is similar to FIG. I and shows the leaf in the bottom locked position;

FIG. 3 is a front view on a larger scale and showing a part of the window which is illustrated in FIGS. 1 and 2.

FIG. 4 is a view which is similar to FIG. I and taken in partial cross section along line IV-Iv of FIG. 6;

FIG. 5 is an exploded assembly view showing the locking device FIG. 6 is a transverse sectional view taken along line IV-IV of FIG. 4, the frame being assumed to have been removed;

FIG. 7 is a horizontal sectional view of the frame and the leaf in the closed position and taken along line VII-VII of FIG. 3:

FIGS. 8 and 9 are perspective diagrams on a small scale showing the application of the invention to a two-leaf French window located in the closed position in FIG. 8 and in the open position in FIG. 9;

FIG. 10 is a partial transverse sectional view of two associated leaves showing those edges of said leaves which are located opposite to each other and remote from the hinges;

FIG. 11 is a partial front view of an alternative form of the locking device, the operating lever being assumed to have been removed;

FIG. 12 is a view in elevation showing a portion of the hinge plate alone.

In the particular embodiment of the invention which is described with reference to FIGS. 1 to 7 of the accompanying drawings, there is shown the application of this invention to a window comprising a single leaf 1 which is formed of annealed safety glass. This window also comprises a frame 2 which is made of wood in the example described.

The frame 2 is provided with a flange 3 which is formed externally on the inner periphery of said frame and extends along three sides (namely the two upright members and the top crossmember). The bottom crossmember is provided on the inside with a sill 4. A seal 5 is fitted on the inner face of the flange 3 and a second seal 6 is placed on the outer shoulder 7 which surrounds the sill 4.

The seal 5 is disposed in such a manner that the leaf 1 is applied against said seal in the top position of closure. In this position, the leaf 1 is placed vertically opposite to the seal 6.

The leaf 1 is attached to two hinges 8 by means of screws 9 which pass through a hole formed in said leaf and serve to couple one of the flanges 11 of the hinge 8 to a counterplate 12, as shown in FIG. 7.

The second flange 13 of the hinge 8 is integral with a rectangular hinge plate 14 which forms part of the locking device as specifically contemplated by the invention. The hinge plate 14 is slidably mounted within a flat casing 15 which is inserted within the upright member 16 of the frame 2. As shown in FIG. 5, the casing 15 is provided with a lateral slot 17 through which the flange 13 of the hinge 8 is permitted to pass. The slot 17 is partially closed by means of a removable strip 18 which is attached to the upright member 16 by means of a screw 19, while another screw 21 serves to secure the casing 15 proper.

The width of the casing 15 is substantially greater than that of the hinge plate 14 in order that this latter should be permitted to carry out in its own plane a movement of displacement having an oblique component relative to the vertical.

in the example under consideration, the movement of displacement which each hinge plate 14 is intended to carry out is a movement of translation along a rectilinear path. To this end, connection means are provided between the hinge plate 14 and the casing 15 in order to permit such a displacement. Said connection means comprise studs 22 which are carried by the hinge plate 14 and the extremities of which are engaged in obliquely oriented slots 40 formed in both sides of the easing 15.

The angle A which is made by the axis XX of each slot 40 with the vertical as shown in FIG. 12 governs the amplitudes K and K of the horizontal and vertical displacements of the hinge plate 14 and consequently of the leaf 1.

The locking device additionally comprises operating members for carrying out the displacement of the hinge plates 14 along the axis XX. Said operating members comprise in oppositely facing relation to the lower hinge plate 14 a pivotal handle 23 which is rigidly fixed to a spindle 24 and intended to control the position of the hinge plate 14 by means of an eccentric. As shown in FIG. 6, said eccentric comprises a crank plate 25 which is rigidly fixed to be spindle 24. A roller 26 is mounted on the crank plate 25 and applied against the guide ramp 27 which delimits a slot 28 formed in the hinge plate 14. The profile of the guide ramp 27 has a substantially rectilinear portion 27a (as shown in FIG. 12) which is located on the side corresponding to the flange l3 and followed by an arcuate portion 27b having a smaller angle of slope. In order to permit the free rotation of the crank plate 25, the sides of the casing 15 are pierced so as to form a circular window 31, thereby freeing at least one of the elongated slots 28.

In order to permit the assembly of the device while taking into account the thickness of the upright member 16 of the frame 2, provision is made for mounting plate 32 which is at tached to the casing 15 by means of tubular distance pieces 33 which are held in position by means of clamping screws 34 (as shown in FIG. 6). The height of the distance pieces 33 is such that the mounting plate 32 is brought substantially flush with the face of the upright member 16.

The locking device further comprises an elastic washer 35 which is interposed between the crank plate 25 and a sleeve 36 which is integral with the mounting plate 32 and serves to guide the spindle 24 after interposition of a self-lubricating bushing 37. The mounting plate 32 is also adapted to carry a stud 38 which is engaged in a groove 39 formed in the opposite face of the handle 23. The stud 38 is intended to limit the rotation of said handle.

In practice, steps are taken to ensure that, on the one hand, the rotation of the handle 23 should take place through an angle of the order of land that, on the other hand, the two end positions of said handle are the top vertical position and bottom vertical position.

In order that the casing 15 and hinge plate 14 may be employed both in the case of assembly within the right-hand upright member and in the case of assembly within the lefthand upright member, it is intended in accordance with the invention to form in the hinge plate 14 a second elongated slot 28a which is symmetrical with the slot 28 (as shown in FIG. 4), the diameter of the opening 31 being such that the roller 26 may be placed at the time of assembly either in the slot 28 or in the slot 28a with equal ease.

The locking device is also arranged so that the rotation of the operating handle 23 should take place on the outside with respect to the frame 2.

In the single-leaf construction under consideration, it is also intended that the upright member 10 which is located opposite to the upright member 16 should be provided internally with a rebate 20 which extends to the full height of said member opposite to the free edge 30 of the leaf which is assumed to have been brought to the closed position.

The operation of the locking device which is contemplated by the invention can readily be understood: when the leaf 1 is in the top position of closure (shown in FIG. 3) in which the lever 23 is in the bottom vertical position, the leaf 1 can be caused to pivot about the hinges 8 and thus moves away from the sill 4 of the frame 2. The leaf 1 can thus be brought to the fully open position.

Assuming that the leaf 1 has been returned to the top position of closure shown in FIG. 3, a pivotal movement of the lever 23 through l80in the direction H produces an oblique downward translation movement of the corresponding hinge plate 14 along the axis XX as a result of action produced by the roller 26 on the guide ramps 27a and 27b and as a result of reaction of the studs 22 on the elongated slots 40, said translational movement being transmitted to the other hinge plate 14 by means of the leaf 1. The vertical component having an amplitude K, of the downwardly directed translational movement applies the bottom edge of the glass pane against the bottom seal 6 which is thus compressed. At the same time, the horizontal component of displacement which has an amplitude K and is directed away from the upright member 16 has the effect of engaging the vertical free edge 30 of the leaf within the rebate 20 which is provided for this purpose. During this displacement, the external faces of the glass pane which forms the leaf 1 are in rubbing contact with the oppositely facing seals 5. When the leaf 1 has reached its bottom locked position, it is retained by the rebate 20 along the entire length of the free edge 30, which is highly favorable to good leaktightness and prevents excessive deformations, such deformations being especially to be feared when said leaf is made of this safety glass. It will also be noted that the window which is thus arranged does not call for any locking device on the free edge of the leaf, which is an important advantage.

It should be pointed out that the law of motion is not necessarily proportional to the angle of rotation of the handle 23 in the direction of the arrow H. In fact, by virtue of a profile of the guide ramp 27 of the type mentioned earlier, steps may be taken to ensure that a relatively substantial displacement of the leaf 1 is obtained at the outset in respect of the initial portion of travel of the lever 23 which corresponds to the action of the guide ramp 27a. The displacement over the last portion of said travel is smaller by reason of the curved shape of the ramp 27b. Thus, the clamping effort exerted on the seal 6 may be substantially increased at the end of travel and tightness of closure may consequently be enchanced.

In the embodiment of FIGS. 8 and 9, there is shown the application of the invention to a French window comprising two symmetrical leaves 41a, 4112, each leaf being controlled by means of an operating lever 23a, 23b of the type previously described. In the example under consideration, each leaf such as the leaf 41a is adapted to carry three hinges 8a, 8b, 8c, each hinge being joined to a hinge plate of the type contemplated in the foregoing. Only the central hinge plate is provided with means for actuation from the lever 23a. It will be noted that, under these conditions and by virtue of the horizontal component K, of the displacement, either of the two leaves 41a, 41b may be opened first with equal ease while the other leaf is maintained in the closed position.

In the case in which the window comprises two leaves 51a, 51b formed of safety glass, it is intended in accordance with the invention to provide one of said leaves with an added edge fitting 42 (as shown in H6. 10) which is made of thermoplastic material, for example, and secured by means of a layer of adhesive 43. The free portion of the edge fitting 42 is fitted with an elastic seal 44.

Under these conditions, with the free edge 30 es the leaf 51b is displaced towards the edge of the second leaf 51a which is assumed to be in the bottom position of closure, the edge 30 penetrates into the interiorof the seal 44, thereby providing a particularly leaktight joint.

It is apparent that the invention is not limited to the forms of construction hereinabove described and that variants may accordingly be contemplated. Thus, the positional control of the hinge plate 14 could be ensured in accordance with FIG. 11 by means of a rotary pinion 45 which is keyed on the spindle of the lever 23. The pinion 45 is adapted to engage with a rack 46 formed in a window 47 of the hinge plate as designated in this embodiment by the reference numeral 48. In this case, the displacement of leaf along the axis X-X is proportional to the angle of rotation of the operation of the operating lever 23.

It is further apparent that the law of movement of the hinge plate relative to the angular displacement of the operating lever 23 can also be modified. In the case of the first embodiment hereinabove described, it is only necessary for this purpose to change the contours of the guide ramps 27 which limit the elongated slots 28 of the hinge plates 14. Similarly, it is possible to provide the slots 40 with a profile which is at least partly curvilinear.

Finally,the locking device can be so arranged that the rotation of the operating handle 23 should take place on the inside with respect to the frame 2; this arrangement can be of interest either in the particular case in which sufficient clearance is not available externally of the frame or, in a more general manner, in order to prevent any downward movement of the leaf 1 from being carried out as long as this latter remains open, and danger of compression of the sill 4 of the frame 2 by the bottom edge of the leaf 1 being thus practically eliminated.

I claim:

1. A door, window and the like closing device comprising a frame, one leaf capable of displacement with respect to said frame, a device for locking said leaf with respect to said frame, wherein said frame comprises two upright members joined by two crossmembers, one of said uprights carrying a part of said locking device, the other part being carried by said leaf, and the other upright carrying a rebate accommodating the corresponding edge of said leaf when in closing position, and wherein said locking device comprises hinge plates mounting said leaf with respect to said frame, casings fitted within said frame and having a lateral slot for receiving a said hinge plate, said hinge plates being slidably mounted in said casings, guide means for said hinge plates comprising studs and obliquely disposed slots on said hinge plates and said casings, and an operating handle pivotally mounted on said frame and connnected to at least one of said hinge plates by means of an eccentric comprising a crank which engages a guide ramp formed in-said hinge plate, whereby upon actuation of said operating handle said leaf is obliquely displaced in translational motion with respect to said frame, said leafs edge being engaged into said rebate of the frame when said leaf is in closed position.

2. A door, window and the like closing device comprising a frame, two leaves capable of displacement with respect to said frame, at least one locking device for locking one of said leaves with respect to said frame, wherein said frame comprises two upright members joined by two crossmembers, one of said uprights carrying a part of said locking device, the other part thereof being carried by the leaf adjacent thereto, both said leaves being of annealed safety glass, the vertical edge of one of said leaves opposite to the upright being free whereas the other vertical edge of the second leaf opposite to the other upright having an edge fitting carrying a resilient seal, said locking device comprising hinge plates mounting said leaf with respect to said frame, casings fitted within said frame and having a lateral slot for receiving said hinge plate, said hinge plates being slidably mounted in said casings, guide means for said hinge plates comprising studs and obliquely disposed slots on said hinge plates comprising studs and said casings, and an operating handle pivotally mounted on said frame and connected to at least one of said hinge plates, whereby upon actuation of said operating handle said leaf is obliquely displaced in translational motion with respect to said frame, said free leafs edge being engaged onto said resilient seal when both of said leaves are in closed position. 

1. A door, window and the like closing device comprising a frame, one leaf capable of displacement with respect to said frame, a device for locking said leaf with respect to said frame, wherein said frame comprises two upright members joined by two crossmembers, one of said uprights carrying a part of said locking device, the other part being carried by said leaf, and the other upright carrying a rebate accommodating the corresponding edge of said leaf when in closing position, and wherein said locking device comprises hinge plates mounting said leaf with respect to said frame, casings fitted within said frame and having a lateral slot for receiving a said hinge plate, said hinge plates being slidably mounted in said casings, guide means for said hinge plates comprising studs and obliquely disposed slots on said hinge plates and said casings, and an operating handle pivotally mounted on said frame and connnected to at least one of said hinge plates by means of an eccentric comprising a crank which engages a guide ramp formed in said hinge plate, whereby upon actuation of said operating handle said leaf is obliquely displaced in translational motion with respect to said frame, said leaf''s edge being engaged into said rebate of the frame when said leaf is in closed position.
 2. A door, window and the like closing device comprising a frame, two leaves capable of displacement with respect to said frame, at least one locking device for locking one of said leaves with respect to said frame, wherein said frame comprises two upright members joined by two crossmembers, one of said uprights carrying a part of said locking device, the other part thereof being carried by the leaf adjacent thereto, both said leaves being of annealed safety glass, the vertical edge of one of said leaves opposite to the upright being free whereas the other vertical edge of the second leaf opposite to the other upright having an edge fitting carrying a resilient seal, said locking device comprising hinge plates mounting said leaf with respect to said frame, casings fitted within said frame and having a lateral slot for receiving said hinge plate, said hinge plates being slidably mounted in said casings, guide means for said hinge plates comprising studs and obliquely disposed slots on said hinge plates and said casings, and an operating handle pivotally mounted on said frame and connected to at least one of said hinge plates, whereby upon actuation of said operating handle said leaf is obliquely displaced in translational motion with respect to said frame, said free leaf''s edge being engaged onto said resilient seal when both of said leaves are in closed position. 